NASA has a free e-book, "X-15: Extending the Frontiers of Flight," here. It lists Kindle format, which is a .prc file, and "Sony Reader" format, which is a .pdf file. They also say that they'll have other aeronautics e-books here in the future.

I didn't realize the X-15 was a "she." I always thought of it as a "he." (I've tried to explain this kind of gendered insanity to my Peruvian wife, without any success. "Why isn't your computer a "she"?)

NASA has a free e-book, "X-15: Extending the Frontiers of Flight," here. It lists Kindle format, which is a .prc file, and "Sony Reader" format, which is a .pdf file. They also say that they'll have other aeronautics e-books here in the future.

Thanks. As a kid, I reveled in the exploits of that experimental aircraft.